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Monthly Downloads: 73
Programming language: C
License: BSD 3-clause "New" or "Revised" License
Tags: User Interfaces    

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README

linenoise

CircleCI

A lightweight readline-replacement library for Haskell based on the linenoise library. (Not production ready!) See the demo app for usage, or see the climb library for higher-level building blocks for GHCi-like REPLs with colon-commands.

Differences from alternatives

  • haskeline
    • This uses FFI to a minimal C library vs pure Haskell
    • This uses standard MTL/Unlift typeclasses vs custom ones.
    • This does not require the use of a specific monad transformer.
  • readline
    • This offers a MonadIO/MonadUnliftIO interface vs raw IO.
    • This vendors and statically links its underlying library to simplify the build process.

License and attribution

This library includes the source code and license for linenoise in cbits. It is a fork of an older library with all licensing and attribution preserved.

Development workflow

This project uses stack to build.

The Makefile has a bunch of relevant phony targets for a development workflow including

  • build - Build the library and demo
  • download - Update vendored linenoise
  • demo - Run the demo app
  • deps - Install dev tools
  • lint - Lint with hlint
  • format - Format with stylish-haskell
  • docs - Generate docs

In addition, there are targets starting with ci that are invoked in various CI phases.

TODO

  • Support unicode (may involve vendoring a linenoise fork)
  • Verify that the FFI modifications for ByteString are memory-safe


*Note that all licence references and agreements mentioned in the linenoise README section above are relevant to that project's source code only.